2001 Mazda MPV ESFACTORY OEM SERVICE PROCEDURE

DTC P1102: MAF Sensor Inconsistent With TP Sensor (Less Than Expected): Testing

NOTE: Record freeze frame data. Check for service bulletins and on-line information.
  1. Using scan tool, access PID/DATA MONITOR. Record PID data for ECT, TP and MAF. Warm engine until ECT PID is more than 176°F. Drive vehicle. Check MAF PID while TP PID is more than 50 percent. If MAF PID is less than 1.09 lbs. min., check TP sensor. See SYSTEM & COMPONENT TESTING - MIATA, MILLENIA, MPV, PROTEGE & 626 article. If TP sensor is okay, go to next step. If TP sensor is faulty, replace as necessary. Go to step  4 . If MAF PID is more than 1.09 lbs. min., problem is not present. Go to TROUBLE SHOOTING - NO CODES article.
  2. Turn ignition off. Disconnect MAF/IAT sensor connector. Check connector and terminals. If no problem is found, go to next step. If any problem is found, repair or replace as necessary. Go to step  4 .
  3. Turn ignition off. Disconnect PCM harness connector. PCM is mounted to passenger floor, behind glove box. Check PCM harness connector and PCM terminals. If problem is not present, replace MAF/IAT sensor. If any problem is present, repair or replace as necessary. Go to next step.
  4. Reconnect all components. Turn ignition on. Using scan tool, clear DTC. Warm engine until ECT PID is more than 176°F. Drive vehicle. Accelerate so TP PID is more than 50 percent and MAF PID is more than 1.09 lbs. min. for more than 5 seconds. Recheck DTCs. If DTC P1102 is present, replace PCM and go to next step. If DTC P1102 is not present, go to next step.
  5. Perform after repair procedure. See AFTER REPAIR PROCEDURE  . If DTC is not present, testing is complete. If any DTC is present, go to appropriate test for diagnosis and repair.
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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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